Actions
All four quadriceps are powerful extensors of the knee joint. They are crucial in walking, running, jumping and squatting. Because rectus femoris attaches to the ilium, it is also a flexor of the hip. This action is also crucial to walking or running as it swings the leg forward into the ensuing step. The quadriceps, specifically the vastus medialis, plays the important role of stabilizing the patella and the knee joint during gait.
Read more about this topic: Quadriceps Femoris Muscle
Famous quotes containing the word actions:
“Your toddler is no longer a baby feeling himself as part of you, using you as his controller, facilitator, his mirror for himself and the world. But he is not yet a child either; ready to see you as a person in your own right and to take responsibility for himself and his own actions in relation to you.”
—Penelope Leach (20th century)
“What is the use of aesthetics if they can neither teach how to produce beauty nor how to appreciate it in good taste? It exists because it behooves rational human beings to provide reasons for their actions and assessments. Even if aesthetics are not the mathematics of beauty, they are the proof of the calculation.”
—Franz Grillparzer (1791–1872)
“Words are also actions, and actions are a kind of words.”
—Ralph Waldo Emerson (1803–1882)